DCO

Ducommun Incorporated

A maker of high-reliability electronic gear and structural components for commercial and military aircraft, Ducommun supplies cable assemblies, printed circuit board assemblies, and lightning diversion systems for planes flown by airlines and armed forces. Its roots reach back to 1849, when Swiss-trained watchmaker Charles Louis Ducommun walked from Arkansas to Los Angeles on foot with a mule, opened a small watch-repair shop, and built a business that became the oldest continuously operating company in California.